Process for manufacturing agglomerated products



, Patented Jam.- 30, 1931 d i 1,811,935 a UNITED STATES PATENT; OFFICEmum-Enronnn Hun, or nors-sumnam reason 11c Drawing. Application filedApril 29, 1929, Serial No. 359,167, and in France March 18, 1929.

The present invention relates to a process I claim: I for themanufacture of agglomerated 'p'r'od- A process for the manufacture ofagglomucts from the dust or waste of anthracite erated products fromcoal dust, comprising or other mineral fuels. The said powder or thesteps of mixing the coal dust with an agwaste, after a preliminarydryingin retort glomerat ng materiahcomposed of 65% pefu naces heated to 1200C., is ground to a rqlelun p1t h,'24% mazout, and 6% none powder, whichis then loaded into mixox1d1z mg vegetable 01l;.t cn ggl meratlng ingand inding apparatus together with a the mlxture; and finally cOklIlgtheagglomers uitable inding substance, which according ate thusobtained.

1Q to the invention comprises petroleum pitch, In imony whereof I'afiixy Si ll' i 49 then adding the vegetable oil and the water.

" heavy petroleum oil, such as mazout, anda I MARC/EL HIPPOLYTEvegetable oil. The mass thus mixed is placed a in presses in which theagglomerated prodnets are given the required shape, in the V 15 knownmanner. 00

The said agglomerated products are then placed in ovens heated to atemperature of 300-400 C. in which they are "converted into coke. Theduration of the treatment in the 3 ovens is usually 1% hours. It mayvary according 'to the nature of the fuel.

The said binding substance, which consists of petroleum pitch, heavypetroleum oil and vegetable oil, constitutes the essential feature ofthe invention. In practice, this material consists of the followingmixture:

, Y Per cent I v {{etroleum pitchh l 65 N azout or ot er ea tro eum oil24 30 Cotton seed oil until 6 a Water I 5 Obviously, these proportionsare given sole- 1y by-way of example, instead of the cotton seed oil,any other vegetable oil can be used. The said substances are-mixed at atem- 1 perature of about 60 C. and the petroleum pitch and the mazoutare first mixed together,

The binding substance thus prepared is added to anthracite dust orwaste, the proportion being 5 to 25 per cent forthe bind ing substanceand to 75 per cent of the 45 anthracite dust or waste.

